Frodulent Debit Order

I've banking with FNB for years now. I am so disappointed. My bank account was debited this morning by a strange company. When I called fnb and asked which company that is, the call centre agent told me she cannot and instead gave me this ********** number to call instead. She also mentioned that there's a **** going on. So I must reverse the debit. As a customer, I feel this is not enough! So it's my problem? Fnb is aware that this company is making unauthorised debit orders from their client's accounts and they aren't doing anything about it?! Unbelievable. I'm am opening another account tomorrow at a different bank. I am leaving FNB.